There were some minor improvements to the Suunto firmware last week (v2.6.54) covering all current devices in slightly different ways.
New Features:
- Fitness age, which shows your fitness level based on a target level for a specific age. (Suunto 3 Fitness)
- Direction indicator when navigating a route (Spartan, Suunto 9)
Here we can see the direction indicator on the Suunto9 to the left on the new firmware compared to the SPARTAN Sport on the right with the old firmware and following the same course. The course ahead is in dark blue and, on the left, has directional arrows on the course.
Enhancements and Fixes:
- You can now also follow pace zones without setting a target (all)
- You can now also follow power zones without setting a target (all except 3 Fitness)
- Improvements to FusedAlti (Spartan Ultra, Spartan WHR Baro, Suunto 9 BARO)
- Additional bug fixes and performance improvements (all)
Last Updated on 20 January 2026 by the5krunner
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tfk is the founder and author of the5krunner, an independent endurance sports technology publication. With 20 years of hands-on testing of GPS watches and wearables, and competing in triathlons at an international age-group level, tfk provides in-depth expert analysis of fitness technology for serious athletes and endurance sport competitors.
“There were some minor improvements to the Suunto firmware last week (v2.5.54) …”
I think that should have been v 2.6.54? That’s what I got when I updated just now, anyway.
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